| 摘要 |
PROBLEM TO BE SOLVED: To provide a die mold for injection molding which integrally molds an overlap fan having walls at inner and outer peripheral edges from synthetic resin, and the overlap fan molded with this die mold. SOLUTION: The die mold is provided with a plurality of blades which have the walls at the inner and outer peripheral edges and radially extend from the axis center on the plane, and some parts of respective blades are overlapped each other relative to the adjacent blades in the direction of the rotating shaft. In the die mold, a movable die is divided into a non-overlapped part and an overlapped part. An integrated molded body of synthetic resin is obtained by the die mold constituted by the space where the movable die of the non-overlapped part moves in the axial direction and the movable die of the overlapped part moves in the rotational direction, and the overlap fan molded by the die. COPYRIGHT: (C)2005,JPO&NCIPI |
